<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>奔跑的少年</title>
    <style>
        .box1{
            height: 169px;
            width: 110.7px;
            background-image: url(./img/ex06/run.png);
            background-position: 0 0;
            transition: .3s steps(5);
        }
        .box1:hover{
            background-position: -553.5px 0;
        }
    </style>
</head>
<body>
    <div class="box1"></div>
</body>
</html>